Climate Change:

A recent report from the United Nations found many of the world's ecosystems in decline and said that global warming will only worsen existing problems. Can businesses help turn the tide and find solutions where policymakers have failed? Steve Percy, former chief executive officer of BP America, explains the influential U.N. study, and also discusses whether U.S. companies are near consensus on a future climate change policy. Plus, Percy weighs in on global energy markets, deepwater oil drilling and whether Congress or the White House should prevent CNOOC Ltd. from its bid to purchase Unocal.